A person who makes, sells, or repairs hats. / (Australia, slang) A person who lives alone in the bush. / A miner who works by himself.

Third-person singular simple present indicative form of tie in

(medicine) The quality of being atraumatic; the lack of trauma.

(mineralogy) An orthorhombic-dipyramidal black mineral containing hydrogen, iron, lead, manganese, oxygen, and vanadium.